Merge branch '2.6.x' into 2.7.x

Closes gh-31395

spring-boot-project/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/jar/JarFileWrapperTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -61,6 +61,7 @@ class JarFileWrapperTests {
 	@AfterEach
 	void cleanup() throws Exception {
 		this.parent.close();
+		this.wrapper.close();
 	}
 
 	private File createTempJar(File temp) throws IOException {